(1998). An act granting the Lukban Telephone System Inc. a franchise to construct, install, maintain, establish and operate local exchange network in the municipality of Lukban province of Quezon. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"An Act Granting the Lukban Telephone System Inc. a Franchise to Construct, Install, Maintain, Establish and Operate Local Exchange Network in the Municipality of Lukban Province of Quezon." Manila Times 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"An Act Granting the Lukban Telephone System Inc. a Franchise to Construct, Install, Maintain, Establish and Operate Local Exchange Network in the Municipality of Lukban Province of Quezon." Manila Times, 1998.
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